Display substrate and display panel having the same

Abstract

A display substrate includes a base substrate, a first storage electrode, a second storage electrode, a first insulating layer, a first spacing member and a second spacing member. The base substrate includes a first pixel region and a second pixel region that are defined by a plurality of gate lines and a plurality of source lines extended in a direction different from an extended direction of the gate lines. The first storage electrode is in the first pixel region. The second storage electrode is in the second pixel region. The first insulating layer covers the first storage electrode, and has a recessed portion on the second storage electrode. The first spacing member is on the first insulating layer corresponding to the first storage electrode. The second spacing member is on the recessed portion.

1. A display panel comprising:
 a first display substrate including:
 a plurality of gate lines extending in a first direction; 
 a plurality of data lines extending in a second, different direction; 
 a first switching element electrically connected to an n-th gate line and an m-th source line, in which m and n are natural numbers; 
 a first metal electrode extended from an output electrode of the first switching element; 
 a second switching element electrically connected to the n-th gate line and an (m+k)-th source line, in which k is a natural number; 
 a second metal electrode extended from an output electrode of the second switching element; and 
 a first insulating layer covering the first metal electrode, the first insulating layer having a recessed portion on the second metal electrode; 
 
 a second display substrate combined with the first display substrate to interpose a liquid crystal layer; 
 a first spacing member formed in a region corresponding to the first metal electrode to maintain a cell-gap between the first and second display substrates; and 
 a second spacing member formed in a region corresponding to the recessed portion, an end portion of the second spacing member being spaced apart from the first display substrate or the second display substrate by a constant distance. 
 
     
     
       2. The display panel of  claim 1 , wherein the first display substrate further comprises:
 a first storage electrode overlapped with the first metal electrode under the first metal electrode; and 
 a second storage electrode formed from a layer under the second metal electrode, the second storage electrode being not overlapped with the second storage electrode. 
 
     
     
       3. The display panel of  claim 2 , further comprising a second insulating layer formed under the first insulating layer to cover the first and second storage electrodes. 
     
     
       4. The display panel of  claim 3 , further comprising:
 a first storage line electrically connected to the first storage electrode, the first storage line being substantially parallel with the m-th source line; and 
 a second storage line electrically connected to the second storage electrode, the second storage line being substantially parallel with the (m+k)-th source line. 
 
     
     
       5. The display panel of  claim 2 , wherein the constant distance is substantially the same as a summation of a thickness of the first insulating layer and a thickness of the first storage electrode. 
     
     
       6. A display substrate comprising:
 a base substrate including a plurality of gate lines extending in a first direction and a plurality of data lines extending in a second, different direction; 
 a first switching element electrically connected to an n-th gate line and an m-th source line, in which m and n are natural numbers; 
 a first metal electrode extended from an output electrode of the first switching element; 
 a second switching element electrically connected to the n-th gate line and an (m+k)-th source line, in which k is a natural number; 
 a second metal electrode electrically connected to an output electrode of the second switching element; 
 a first insulating layer covering the first metal electrode and a portion of the second metal electrode, an uncovered portion of second metal electrode defining a recessed portion associated with the second metal electrode; 
 a first spacing member on the first insulating layer corresponding to the first metal electrode; and 
 a second spacing member positioned in the recessed portion, wherein n, m and k are natural numbers. 
 
     
     
       7. The display substrate of  claim 6 , further comprising:
 a first storage electrode formed from a layer disposed under the first metal electrode, the first storage electrode being overlapped with the first metal electrode; and 
 a second storage electrode formed from the layer disposed under the second metal electrode, the second storage electrode being not overlapped with the second metal electrode. 
 
     
     
       8. The display substrate of  claim 7 , further comprising a second insulating layer under the first insulating layer to cover the first and second storage electrodes. 
     
     
       9. The display substrate of  claim 8 , further comprising: a first storage line extended from the first storage electrode, the first storage line being extended substantially parallel with the m-th source line; and a second storage line extended from the second storage electrode, the second storage line being extended substantially parallel with the (m+k)-th source line. 
     
     
       10. A display substrate comprising:
 a base substrate including a first pixel region and a second pixel region that are defined by a plurality of gate lines extending in a first direction and a plurality of source lines extending in a second direction; 
 a first storage electrode associated with the first pixel region; 
 a second storage electrode associated with the second pixel region; 
 a first insulating layer covering the first storage electrode and partially covering the second storage electrode so as to form a covered portion and an open portion of the second storage electrode; 
 a first spacing member on the first insulating layer corresponding to the first storage electrode; and 
 a second spacing member positioned above the open portion of the second storage electrode. 
 
     
     
       11. The display substrate of  claim 10 , further comprising a second insulating layer formed under the first insulating layer to cover the first and second storage electrodes. 
     
     
       12. The display substrate of  claim 11 , further comprising:
 a first metal electrode interposed between the first and second insulating layers, the first metal electrode overlapping at least a portion of the first storage electrode; and 
 a second metal electrode on the second insulating layer, the second metal electrode overlapping with at least a portion of the second storage electrode. 
 
     
     
       13. The display substrate of  claim 12 , wherein the first insulating layer on the second metal electrode is partially removed to form the open portion of the second storage electrode. 
     
     
       14. The display substrate of  claim 12 , further comprising:
 a first switching element electrically connected to an n-th gate line and an m-th source line; and 
 a second switching element electrically connected to the n-th gate line and an (m+k)-th source line, wherein n, m and k are natural numbers. 
 
     
     
       15. The display substrate of  claim 14 , wherein the first metal electrode is electrically connected to an output electrode of the first switching element, and the second metal electrode is electrically connected to an output electrode of the second switching element. 
     
     
       16. The display substrate of  claim 15 , wherein the first and second storage electrodes are electrically connected to a common line. 
     
     
       17. The display substrate of  claim 14 , wherein the first and second storage electrodes are extended from an (n−1)-th gate line. 
     
     
       18. A display panel comprising:
 a first display substrate including a plurality of pixel regions defined by a plurality of gate lines and a plurality of data lines, the first display substrate further including a first storage electrode in a first pixel region, a second storage electrode in a second pixel region, and a first insulating layer covering the first storage electrode and partially covering the second storage electrode, thereby forming a covered portion and an open portion of the second storage electrode; 
 a second display substrate positioned in spaced apart relationship to the first display substrate; 
 a liquid crystal layer interposed between the first and second display substrates; 
 a first spacing member on the first storage electrode to maintain a cell-gap between the first and second substrates; and 
 a second spacing member in a region corresponding to the open portion of the second storage electrode, an end portion of the second spacing member being spaced apart from the first display substrate or the second display substrate by a constant distance. 
 
     
     
       19. The display panel of  claim 18 , wherein the first display substrate further comprises a second insulating layer formed under the first insulating layer to cover the first and second storage electrodes. 
     
     
       20. The display panel of  claim 19 , further comprising:
 a first metal electrode overlapping the first storage electrode, the first metal electrode being interposed between the first and second insulating layers; and 
 a second metal electrode overlapping the second storage electrode, the second metal electrode being on the second insulating layer. 
 
     
     
       21. The display panel of  claim 20 , wherein the first insulating layer corresponding to the second metal electrode is partially removed to form the open portion of the second storage electrode. 
     
     
       22. The display panel of  claim 20 , wherein the first display substrate further comprises:
 a first switching element electrically connected to an n-th gate line and an m-th source line; and 
 a second switching element electrically connected to the n-th gate line and an (m+k)-th source line, wherein n, m and k are natural numbers. 
 
     
     
       23. The display panel of  claim 22 , wherein the first metal electrode is electrically connected to an output electrode of the first switching element, and the second metal electrode is electrically connected to an output electrode of the second switching element. 
     
     
       24. The display panel of  claim 23 , wherein the first and second storage electrodes of the first display substrate are electrically connected to a common line. 
     
     
       25. The display panel of  claim 22 , wherein the first and second storage electrodes are extended from an (n−1)-th gate line. 
     
     
       26. The display panel of  claim 18 , wherein the first and second spacing members are formed on the first display substrate. 
     
     
       27. The display panel of  claim 18 , wherein the first and second spacing members are formed on the second display substrate. 
     
     
       28. The display panel of  claim 18 , wherein the constant distance is substantially the same as a thickness of the first insulating layer.